US7867285B2 - Sensing systems and methods for monitoring gait dynamics - Google Patents
Sensing systems and methods for monitoring gait dynamics Download PDFInfo
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- US7867285B2 US7867285B2 US11/346,600 US34660006A US7867285B2 US 7867285 B2 US7867285 B2 US 7867285B2 US 34660006 A US34660006 A US 34660006A US 7867285 B2 US7867285 B2 US 7867285B2
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/50—Prostheses not implantable in the body
- A61F2/76—Means for assembling, fitting or testing prostheses, e.g. for measuring or balancing, e.g. alignment means
-
- A—HUMAN NECESSITIES
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/1036—Measuring load distribution, e.g. podologic studies
- A61B5/1038—Measuring plantar pressure during gait
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- A—HUMAN NECESSITIES
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
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- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
- A61B5/112—Gait analysis
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/50—Prostheses not implantable in the body
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-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/50—Prostheses not implantable in the body
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/50—Prostheses not implantable in the body
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/50—Prostheses not implantable in the body
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- A61F2/66—Feet; Ankle joints
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/50—Prostheses not implantable in the body
- A61F2/76—Means for assembling, fitting or testing prostheses, e.g. for measuring or balancing, e.g. alignment means
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- A—HUMAN NECESSITIES
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Transplantation (AREA)
- Vascular Medicine (AREA)
- Cardiology (AREA)
- Medical Informatics (AREA)
- Dentistry (AREA)
- Physics & Mathematics (AREA)
- Pathology (AREA)
- Biophysics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Physiology (AREA)
- Prostheses (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
Description
W n=(1−a)*ToeLoadmaxn +a *HeelLoadmaxn;
where “n” represents the step number; “ToeLoadmax” represents the maximum measured toe load; “HeelLoadmax” represents the maximum measured heel load; and where “a” is a variable representing the relationship between the ToeLoadmax and the HeelLoadmax measurements. This data is then filtered, such as through the following equation:
Wf n=(1−b)* Wf n−1 +b * W n
where b may be a constant variable, such as 0.05 (wherein the last monitored step only accounts for 5% of the total Wfn). The activity index (“A”) may then be calculated by:
A=Wf/(weight of user in kilograms)
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- 1. The activity of the user (e.g., from the number of steps taken in a particular period of time)
- 2. Toe load and heel load may indicate if the foot selection is correct or not. For example, the system may comprise software that processes information relating to available prosthetic foot products and determines whether the current prosthetic foot is appropriately selected for the user and/or, based on such information, suggest an alternative prosthetic foot.
- 3. Real-time load information is beneficial during alignment processes, and an integrated load indicator (e.g., integrated into the prosthetic foot) provides for dynamic alignment based on the real-time analysis.
- 4. A proprietary activity index may be used to give results on increased activity caused by different adjustments or setup configurations of various types of prostheses.
- 5. Deflection of the prosthetic foot may be, through a force model, translated over to a force value at each end of the prosthetic foot. This allows for the measurement of toe load and heel load through a single sensor unit.
- 6. From monitoring the bending of the prosthetic unit, a sudden permanent change in certain bending values may indicate a failure of the device due to breakage or delamination.
Part | Value | Device | Package | Library |
IC1 | TINYI5LP | TINY15LP | DIL08 | atmel |
Q1 | BC546A | BC546A | TO92-EBC | transistor- |
R1 | ||||
16K | R-EU_0204/5 | 0204/5 | | |
R2 | ||||
1K | R-EU 0204/5 | 0204/5 | | |
R3 | ||||
10K | R-EU_0204/5 | 0204/5 | rcl | |
R4 | 68 | R-EU 0204/5 | 0204/5 | Rcl |
RESSTRIP | 53047-02 | 53047-02 | con-molex | |
SERPORT | 53047-02 | 53047-02 | con-molex | |
U$1 | LED3MM | LED3MM | Led | |
U$2 | LED3MM | LED3MM | Led | |
Claims (20)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/346,600 US7867285B2 (en) | 2005-02-02 | 2006-02-02 | Sensing systems and methods for monitoring gait dynamics |
US11/429,696 US7794505B2 (en) | 2005-02-02 | 2006-05-08 | Sensing systems and methods for monitoring gait dynamics |
US11/430,076 US7862620B2 (en) | 2005-02-02 | 2006-05-08 | Sensing systems and methods for monitoring gait dynamics |
US12/981,339 US8122772B2 (en) | 2005-02-02 | 2010-12-29 | Sensing systems and methods for monitoring gait dynamics |
US13/405,039 US8869626B2 (en) | 2005-02-02 | 2012-02-24 | Sensing systems and methods for monitoring gait dynamics |
US14/522,247 US9462966B2 (en) | 2005-02-02 | 2014-10-23 | Sensing systems and methods for monitoring gait dynamics |
US15/287,577 US10369025B2 (en) | 2005-02-02 | 2016-10-06 | Sensing systems and methods for monitoring gait dynamics |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US64922605P | 2005-02-02 | 2005-02-02 | |
US11/346,600 US7867285B2 (en) | 2005-02-02 | 2006-02-02 | Sensing systems and methods for monitoring gait dynamics |
Related Child Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/430,076 Continuation US7862620B2 (en) | 2005-02-02 | 2006-05-08 | Sensing systems and methods for monitoring gait dynamics |
US11/429,696 Continuation US7794505B2 (en) | 2005-02-02 | 2006-05-08 | Sensing systems and methods for monitoring gait dynamics |
US12/981,339 Division US8122772B2 (en) | 2005-02-02 | 2010-12-29 | Sensing systems and methods for monitoring gait dynamics |
Publications (2)
Publication Number | Publication Date |
---|---|
US20060195197A1 US20060195197A1 (en) | 2006-08-31 |
US7867285B2 true US7867285B2 (en) | 2011-01-11 |
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Application Number | Title | Priority Date | Filing Date |
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US11/346,600 Active 2029-06-03 US7867285B2 (en) | 2005-02-02 | 2006-02-02 | Sensing systems and methods for monitoring gait dynamics |
US11/430,076 Active 2028-11-21 US7862620B2 (en) | 2005-02-02 | 2006-05-08 | Sensing systems and methods for monitoring gait dynamics |
US11/429,696 Active 2029-03-13 US7794505B2 (en) | 2005-02-02 | 2006-05-08 | Sensing systems and methods for monitoring gait dynamics |
US12/981,339 Expired - Fee Related US8122772B2 (en) | 2005-02-02 | 2010-12-29 | Sensing systems and methods for monitoring gait dynamics |
US13/405,039 Active 2026-02-08 US8869626B2 (en) | 2005-02-02 | 2012-02-24 | Sensing systems and methods for monitoring gait dynamics |
US14/522,247 Active 2026-04-29 US9462966B2 (en) | 2005-02-02 | 2014-10-23 | Sensing systems and methods for monitoring gait dynamics |
US15/287,577 Active 2026-10-13 US10369025B2 (en) | 2005-02-02 | 2016-10-06 | Sensing systems and methods for monitoring gait dynamics |
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Application Number | Title | Priority Date | Filing Date |
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US11/430,076 Active 2028-11-21 US7862620B2 (en) | 2005-02-02 | 2006-05-08 | Sensing systems and methods for monitoring gait dynamics |
US11/429,696 Active 2029-03-13 US7794505B2 (en) | 2005-02-02 | 2006-05-08 | Sensing systems and methods for monitoring gait dynamics |
US12/981,339 Expired - Fee Related US8122772B2 (en) | 2005-02-02 | 2010-12-29 | Sensing systems and methods for monitoring gait dynamics |
US13/405,039 Active 2026-02-08 US8869626B2 (en) | 2005-02-02 | 2012-02-24 | Sensing systems and methods for monitoring gait dynamics |
US14/522,247 Active 2026-04-29 US9462966B2 (en) | 2005-02-02 | 2014-10-23 | Sensing systems and methods for monitoring gait dynamics |
US15/287,577 Active 2026-10-13 US10369025B2 (en) | 2005-02-02 | 2016-10-06 | Sensing systems and methods for monitoring gait dynamics |
Country Status (5)
Country | Link |
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US (7) | US7867285B2 (en) |
EP (2) | EP2340789B1 (en) |
CN (1) | CN101155557B (en) |
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US7794505B2 (en) | 2010-09-14 |
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EP2340789B1 (en) | 2013-05-01 |
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US20060195197A1 (en) | 2006-08-31 |
US8122772B2 (en) | 2012-02-28 |
CA2595895A1 (en) | 2006-08-10 |
CA2595895C (en) | 2016-06-14 |
US20120157882A1 (en) | 2012-06-21 |
EP1843724B1 (en) | 2018-07-25 |
US20060206214A1 (en) | 2006-09-14 |
US20060206215A1 (en) | 2006-09-14 |
US20170119552A1 (en) | 2017-05-04 |
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